The nation’s largest gathering of wholesale souvenir, gift and resort suppliers just keeps getting better. Hosted every November at the foot of Great Smoky Mountains National Park, the International Gift Exposition in the Smokies and the Souvenir Super Show, IGES/SSS, will be celebrating its 15th anniversary this year. The show has expanded from its original pavilion into two modern convention centers offering a buying opportunity for souvenir outlets of all sizes, according to show co-owner, Susan Mills.